Filter.



No. 829,527j

l y PATENTE) JUNE 19, 1906. P. HARDIE. I

PILTER. n AP/PIIGATION FILED OGT.5, 1.905.

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" UNITED STATES PATENT o'EEroE.A

FRANK EEEDLE; or` lNit-w 'oELrinas;I Louisiana',

PITT Err;

No; s233526'.

Appleman-med ocairaieo. ser'i'aiii'b. asiste. i

To' all,` whom it may concern;

Beit known that LIFRANK- HAEnrE-,a citi Zen of the United States, .residing'at New Orleans,in the parish of: Orlea-nsgagndI State of-` Louisiana, have invented new and Ausefulf Im'- provements in Filters, ofwhich the following -isI aspecification-v..n

My 'nventionpertains tohlters'; andl it' lcontemplates the provisionV of a= simple and inercpensi-veporous-wall filter possessed of large capacity and' one'that isadapted to bequic'kly andfeasil'y cleared of'mud and other collected sediment withoutthe necessity of opening thev case or removing any vof the parts. y The invention willI bey fully understood from the iollowing.vv description? and claim when taken in connection 'with' the-accom;-

panying drawings,forming part of thisspeci-` i'ication, in whichy a Figure 1 is a view', sectionI and partly in constituting the presentand preferred em'- pa-rtly; l iny diametricalf horizontalsectionl taken inthe plane indic atedy by the line2 2 of Fig. lylookingfdownward-ly.

Similar letters ofl reference designate ,cor-

responding parts in both of the views of thel drawings, referring to; which-.-

A is the caseof my noveliilter'.

prefer to have ity comprise abase-section a,

aving legs t and also having valvedf outlets: c and d for the discharge of collected sediment, an intermediate sectionle,and af crownsection f, having an opening g and a plate h for normally closing said' opening-and also v having an air-vent fi, the' latter being preferably carried bythe plate h, 'as shown.

Arranged in the case A and on the bottom thereof is an annular pure-water receptacle B,

- from which extends a discharge-conduit C,

while extending through thebottom of the case, preferably at the point shown, is a pipe' D, which is designed to be connected with a street-main or other source of supply and is preferably provided with aforaminated noz- Zle, as shown, whereby itis adapted to discharge the water to be filtered into the case in the form of a spray. E E are upright rods arranged in a circular series in the case and fixed to and rising from the bottom thereof. i These rods E have their upper ends threaded to receive nuts F,

yas sho ovation, vof the filter T15@ Sad' i Acaseniay be of any construction compatible' vwith the purposes of my invention, thoughI4V- G a ormannular ,plate arranged on theseveralf-rodsf below the nutsz F. i y

, is an annular porous' wall of circular circularseries of rodsiE kand interposed: be'- 'tween the receptacle B andE the annular plate G, and I Ais an annular porous wall ofA circular form in cross-section surrounding' the circular series of rods E and interposed' between -thegreceptacle B and the plate' G".

' Invi tue of the construction thus far de# scribedl it will be apparent that water, enter'- ing `through the` piped)k will* occupy the case within `and-without the'\porouswalls H and'I,

thatl suchy water can only reach ytheispace J intermediate the walls H and I andthe rej- "ceptacleffcornmunicating with such space, *i

form cross-section larranged`-` within*y the'y as welll as above and below said' wallsf alsol Lafter Vpercola-ting` through the said walls and I., Incident to its passage through the :porous material compatiblewiththe pur lose l foreign substance; andl h'encewhenL it reaches Vthe receptacle B; Iaridpasses out throughthedischarge-conduit- C it is a perfectly pure' state.

ing`, tha'tthev porous walls H and I may be ithere is no liability of saidwalls being casually displaced, andl yet whenI it isV necessaryy @for any reasontoremove one'of- Ithe walls'andfy -walls H and I, which-maybey ot stone or other uickly ,clamped betweenI the 'annular plate' vandthe receptacle Bin` such manne'rthat of my invention, the'water is robbed o all It will be readily gathered-,from'the forego-V i loo l In order that the porous walls H and I may be quickly and easily cleared of collected mud and other sediment when necessity demands, I provide ythe mechanism shown in elevation. in Fig. 1 and in horizontal section in Fig. 2. This mechanism comprises a central vertical shaft K, stepped in a block m on the bottom of the case A andjournaled in the top of the i case and bearing a collar n, disposed below IlO the arms y, and also having Cotter-pins a disposed below the arm v, whereby they are held against casual displacement, scrapers M, preferably of channel form in cross-section, fixedly connectedl to the rods L and arranged against the outer side of the outer porous wall and the inner side of the inner porous wall, respectively, as best shown in Fig.`2, and springs N, fiXedly connected to the rods L and scrapers M and interposed between the same and the depending portions w and x on the arm v. The springs N are not connected to the depending portions w and of the horizontally-swinging frame carried by the shaft K, and hence it will be observed that when the plate h is removed and the cotter-pins a are withdrawn from the shafts L, either or both shafts, together with the Scrapers and springs connected thereto, may be readily removed from the case.

In the practical use of my filter after the filter becomes impaired by collected mud and other sediment and it is desired to clean the walls H and I the valves c and d are opened and the shaft K is rotated through the medium of the crank t and the driving connection shown and described. When the shaft K is thus rotated, it will be observed that the Scrapers M will be moved in a circular direction with respect to their porous walls and incident to such movement will be yieldingly held by the springs N against the said porous .,walls.

From this it follows that the Scrapers will thoroughly remove mud and collected l c and d, so that when said valves are closed and the filtering operation is resumed good results will be obtained.

Notwithstanding the practical advantages which I have hereinbefore ascribed to my `novel filter it will be readily apparent that the filter is simple, compact, and inexpensive in construction and is well adapted to withstand the usage to which such apparatus is ordinarily subjected.

In a filter, the combination of a case having an inlet for water, an annular pure-water receptacle arranged on the bottom of the case and open at its upper side and having a discharge, inner and outer annular walls of porous material arranged on and clamped against the water-receptacle and having a space between them in communication with and adapted to supply said annular receptacle and also having said space isolated from the interior of the case, a central shaft journaled in the case and extending outside the same and having a radial arm disposed within the case and provided with depending portions arranged at opposite sides of the porous walls and terminating in horizontal arms, rods movable inwardly and outwardly in. the said arms and carrying scrapers, and s )rings interposed between the Scrapers and the depending portions of the first-mentioned arm, whereby the Scrapers are yieldingly held against the porous walls.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

FRANK HARDIE. Witnesses J. M. QUINTERO A. RITTER. 

